16% on net sales

Dec 19, 2016 • Nicolas P. Rougierpublishing

Following the publication of my open access
book From Python to Numpy, I’ve been proposed by a publisher to make a new online book on matplotlib and scientific visualization. This publisher offers me 16% on net sales…

Whaouuu, 16% on net sales…

16% on net sales!

So I’ve just one question: who exactly is getting the other 84% on net sales?